# Latest AMS Results: The Positron Fraction and the p-bar/p Ratio

- Institution: CERN
- Department: Conferences
- Speaker: Andrei Dr. KOUNINE
- Year: 2015
- Language: English
- Subjects: Physics
- Source: [CERN](https://videos.cern.ch/record/3005341)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

A precision measurement by AMS of the positron fraction in primary cosmic rays is presented. The results show that at 275±32 GeV the positron fraction no longer increases with energy. The current status of the anti-proton analysis is also presented..

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## Lectures

1. [Latest AMS Results: The Positron Fraction and the p-bar/p Ratio](https://invisiblenetwork.ai/learn/cern/3005341/d89d3ab219c2), 51 min (CERN's player)